How informative! Most of these, I had no idea about. While I won't be using my pricey makeup brushes to dust my keyboard, it is nice to know that I can remove stains with hairspray and prevent rust by using clear nail polish.

In a pinch I've used Vaseline on creaky doors, doesn't last forever but when you have a newborn and no wd it'll save the day! Very interesting about the blowing out a dent haha! I've used toothpaste to clean a bunch of things, just stear clear of anything too harsh!